Station Overview Station Location
Station Number MT-MH-16 Latitude 46.42725
Station Name Roundup 2.8 ESE Longitude -108.4892333
County Musselshell Elevation (ft) 3547



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 13 0.98 1.53 12 1.53 12 0.00 0 0 10 0 3.0 1 0
Nov 13 0.43 0.20 4 0.20 4 0.00 0 0 2 0 1.5 1 1
Dec 13 0.40 0.73 15 0.73 15 0.00 0 0 4 0 3.0 2 0
Jan 14 0.36 0.32 22 0.32 22 0.00 0 0 2 0 0.0 0 0
Feb 14 0.32 2.67 24 2.67 24 0.00 0 0 9 0 17.5 6 5
March 14 0.74 2.12 13 2.12 13 0.00 0 0 8 0 3.5 2 0
April 14 1.42 0.89 4 0.89 4 0.00 0 0 4 0 0.0 0 0
May 14 2.33 2.85 10 2.85 10 0.00 0 0 10 0 0.0 0 0
June 14 2.67 3.95 14 3.95 14 0.00 0 0 14 0 0.0 0 0
July 14 1.61 0.63 9 0.38 5 0.25 4 1 3 0 0.0 0 0
Aug 14 1.14 5.65 8 5.65 8 0.00 0 0 8 0 0.0 0 0
Sept 14 1.22 0.87 9 0.87 9 0.00 0 0 7 0 0.0 0 0
Water Year Totals: 13.62" 22.41" 144 days 22.16" 140 0.25" 4 days 1 81 days 0 days 28.5" 12 days 6 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2013
10/2/2013 0.09
10/3/2013 0.06
10/4/2013 0.20
10/5/2013
10/6/2013
10/7/2013
10/8/2013 0.00
10/9/2013
10/10/2013
10/11/2013 0.02
10/12/2013
10/13/2013
10/14/2013 0.56
10/15/2013 0.02
10/16/2013
10/17/2013 0.15
10/18/2013 0.02
10/19/2013
10/20/2013
10/21/2013
10/22/2013 0.00
10/23/2013
10/24/2013
10/25/2013
10/26/2013
10/27/2013
10/28/2013 0.08
10/29/2013 0.33
10/30/2013
10/31/2013
11/1/2013
11/2/2013
11/3/2013
11/4/2013
11/5/2013
11/6/2013
11/7/2013
11/8/2013
11/9/2013
11/10/2013
11/11/2013 0.15
11/12/2013 0.00
11/13/2013
11/14/2013
11/15/2013
11/16/2013
11/17/2013
11/18/2013
11/19/2013
11/20/2013 0.00
11/21/2013
11/22/2013 0.05
11/23/2013
11/24/2013
11/25/2013
11/26/2013
11/27/2013
11/28/2013
11/29/2013
11/30/2013
12/1/2013
12/2/2013 0.20
12/3/2013 0.32
12/4/2013 0.11
12/5/2013
12/6/2013
12/7/2013
12/8/2013
12/9/2013 0.00
12/10/2013 0.00
12/11/2013 0.00
12/12/2013 0.00
12/13/2013 0.00
12/14/2013
12/15/2013
12/16/2013
12/17/2013 0.00
12/18/2013
12/19/2013 0.00
12/20/2013 0.00
12/21/2013 0.00
12/22/2013 0.00
12/23/2013 0.10
12/24/2013 0.00
12/25/2013
12/26/2013 M
12/27/2013
12/28/2013
12/29/2013
12/30/2013
12/31/2013
Day of YearDaily PrcpMultiday Prcp
1/1/2014 M
1/2/2014
1/3/2014 0.21
1/4/2014 0.00
1/5/2014 0.11
1/6/2014 0.00
1/7/2014 0.00
1/8/2014 0.00
1/9/2014
1/10/2014 0.00
1/11/2014 0.00
1/12/2014 0.00
1/13/2014 0.00
1/14/2014 0.00
1/15/2014
1/16/2014 0.00
1/17/2014 0.00
1/18/2014
1/19/2014
1/20/2014
1/21/2014
1/22/2014 0.00
1/23/2014 0.00
1/24/2014 0.00
1/25/2014
1/26/2014 0.00
1/27/2014 0.00
1/28/2014 0.00
1/29/2014 0.00
1/30/2014 0.00
1/31/2014 0.00
2/1/2014 0.00
2/2/2014 0.00
2/3/2014 0.02
2/4/2014 0.30
2/5/2014 0.21
2/6/2014 0.00
2/7/2014 0.00
2/8/2014 0.00
2/9/2014 0.38
2/10/2014 0.11
2/11/2014 0.00
2/12/2014 0.00
2/13/2014 0.00
2/14/2014 0.00
2/15/2014 0.00
2/16/2014
2/17/2014
2/18/2014 0.00
2/19/2014 0.00
2/20/2014 0.00
2/21/2014 0.00
2/22/2014 0.05
2/23/2014 0.25
2/24/2014 0.60
2/25/2014
2/26/2014 0.00
2/27/2014
2/28/2014 0.75
3/1/2014 0.46
3/2/2014
3/3/2014 0.00
3/4/2014 0.00
3/5/2014 0.00
3/6/2014 0.00
3/7/2014
3/8/2014
3/9/2014
3/10/2014 0.30
3/11/2014 0.80
3/12/2014
3/13/2014
3/14/2014
3/15/2014
3/16/2014
3/17/2014
3/18/2014 0.05
3/19/2014
3/20/2014
3/21/2014
3/22/2014 0.02
3/23/2014
3/24/2014 0.05
3/25/2014
3/26/2014
3/27/2014 0.00
3/28/2014 0.33
3/29/2014
3/30/2014
3/31/2014 0.11
Day of YearDaily PrcpMultiday Prcp
4/1/2014
4/2/2014
4/3/2014
4/4/2014
4/5/2014
4/6/2014
4/7/2014 0.03
4/8/2014
4/9/2014
4/10/2014
4/11/2014
4/12/2014
4/13/2014
4/14/2014
4/15/2014
4/16/2014
4/17/2014
4/18/2014
4/19/2014 0.19
4/20/2014
4/21/2014
4/22/2014
4/23/2014 0.06
4/24/2014
4/25/2014
4/26/2014
4/27/2014 0.61
4/28/2014
4/29/2014
4/30/2014
5/1/2014
5/2/2014
5/3/2014 0.02
5/4/2014
5/5/2014 0.31
5/6/2014 0.21
5/7/2014 0.55
5/8/2014
5/9/2014
5/10/2014 0.21
5/11/2014
5/12/2014
5/13/2014
5/14/2014
5/15/2014
5/16/2014
5/17/2014 0.16
5/18/2014 0.81
5/19/2014 0.25
5/20/2014
5/21/2014
5/22/2014
5/23/2014
5/24/2014
5/25/2014 0.31
5/26/2014
5/27/2014 0.02
5/28/2014
5/29/2014
5/30/2014
5/31/2014
6/1/2014 0.07
6/2/2014 0.03
6/3/2014
6/4/2014 0.43
6/5/2014
6/6/2014 0.10
6/7/2014
6/8/2014 0.22
6/9/2014
6/10/2014
6/11/2014 0.82
6/12/2014 0.15
6/13/2014
6/14/2014 0.03
6/15/2014
6/16/2014 0.03
6/17/2014 0.15
6/18/2014 1.40
6/19/2014 0.03
6/20/2014
6/21/2014
6/22/2014
6/23/2014
6/24/2014
6/25/2014
6/26/2014 0.20
6/27/2014 0.29
6/28/2014
6/29/2014
6/30/2014
Day of YearDaily PrcpMultiday Prcp
7/1/2014
7/2/2014
7/3/2014
7/4/2014 **
7/5/2014 **
7/6/2014 **
7/7/2014 M 0.25
7/8/2014
7/9/2014
7/10/2014
7/11/2014
7/12/2014
7/13/2014
7/14/2014
7/15/2014
7/16/2014 0.15
7/17/2014
7/18/2014
7/19/2014
7/20/2014
7/21/2014
7/22/2014 0.21
7/23/2014 0.02
7/24/2014
7/25/2014
7/26/2014 0.00
7/27/2014
7/28/2014
7/29/2014
7/30/2014
7/31/2014 0.00
8/1/2014
8/2/2014
8/3/2014
8/4/2014
8/5/2014
8/6/2014
8/7/2014
8/8/2014
8/9/2014 0.03
8/10/2014
8/11/2014
8/12/2014
8/13/2014
8/14/2014
8/15/2014 0.20
8/16/2014 0.09
8/17/2014
8/18/2014
8/19/2014
8/20/2014
8/21/2014 0.15
8/22/2014 0.40
8/23/2014 3.00
8/24/2014 1.70
8/25/2014
8/26/2014
8/27/2014
8/28/2014
8/29/2014 0.08
8/30/2014
8/31/2014
9/1/2014
9/2/2014
9/3/2014
9/4/2014
9/5/2014
9/6/2014
9/7/2014 0.00
9/8/2014
9/9/2014 0.00
9/10/2014 0.12
9/11/2014 0.32
9/12/2014 0.02
9/13/2014
9/14/2014
9/15/2014
9/16/2014
9/17/2014
9/18/2014
9/19/2014
9/20/2014
9/21/2014
9/22/2014
9/23/2014
9/24/2014
9/25/2014
9/26/2014
9/27/2014 0.03
9/28/2014 0.11
9/29/2014 0.21
9/30/2014 0.06



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2013 8:00 AM 0.09 M M M M
10/3/2013 8:00 AM 0.06 M M M M
10/4/2013 8:00 AM 0.20 M M M M
10/8/2013 8:00 AM 0.00 0.0 M M M
10/11/2013 8:00 AM 0.02 M M M M
10/14/2013 8:00 AM 0.56 M M M M The lite rain started yesterday in the afternoom and it;s still reining at this time,
10/15/2013 8:00 AM 0.02 M M M M
10/17/2013 8:00 AM 0.15 M M M M
10/18/2013 8:00 AM 0.02 M M M M
10/22/2013 8:00 AM 0.00 0.0 M M M
10/28/2013 8:00 AM 0.08 M 0.08 M M .08 inches of rain/snow mel ted in the glass this AM
10/29/2013 8:00 AM 0.33 3.0 0.33 M M
11/11/2013 8:00 AM 0.15 1.5 M 1.5 M
11/12/2013 8:00 AM 0.00 0.0 M M M
11/20/2013 8:00 AM 0.00 0.0 M M M 9 am we have about 1 inch 0f snow and snowing hard
11/22/2013 8:00 AM 0.05 M M M M The snow fall yesterday was about 4.5 inches the amount od moisture was aproxmately .05 inches
12/2/2013 8:00 AM 0.20 M M M M
12/3/2013 8:00 AM 0.32 1.5 M M 0.32 Thers is .32 inches of melted rein and snow in the site glass from the laast 24 hours
12/4/2013 8:00 AM 0.11 1.5 M M M We had about 1.5 inches of new snoww
12/9/2013 8:00 AM 0.00 0.0 M M M Blowing snow high gusting winds
12/10/2013 8:00 AM 0.00 0.0 M M M Cloudy 24 dwgrees, very slippery out
12/11/2013 8:00 AM 0.00 0.0 M M M Clear and cold about 8 degrees at sun rice just a trace of snow.
12/12/2013 8:00 AM 0.00 0.0 M M M Very gusty winds, 37 degrees, and the ice and snowy roads are veryn slippery
12/13/2013 8:00 AM 0.00 0.0 M M M Cloudy 33 degrees roads are melting
12/17/2013 8:00 AM 0.00 0.0 M M M Windy and cold about 40 degrees a lot of ice left over from the cold weather last week.
12/19/2013 8:00 AM 0.00 0.0 M M M Blowing and driting snow about 4 inches all podwer some 1 foot drifts
12/20/2013 8:00 AM 0.00 0.0 M M M 1/2 inch of new podwer snow over the last 24 hours
12/21/2013 8:00 AM 0.00 0.0 M M M 1 inch of fresh podwerd snow
12/22/2013 8:00 AM 0.00 0.0 M M M 1.5 inches of fresh snow by 9 Am this morning
12/23/2013 8:00 AM 0.10 M M M M
12/24/2013 8:00 AM 0.00 0.0 M M M Wall to Wall ice on top of snow ater the rain last night. 37 degrees!!!???
12/26/2013 8:00 AM M M M M M Don't know where the .20 inches of moisture came from in the last 48 hours but it was there this AM? (edit: daily precip initially recorded as 0.20". changed to NA due to inconsistency with nearby data. P.G.)
1/1/2014 8:00 AM M M M M M WE have received a little over 4 inches of fresh powered snow on top of ice rain (edit: daily precip and new snowfall initially recorded as 0.00". changed to NA due to comments above. P.G.)
1/3/2014 8:00 AM 0.21 M M M M The 4 inches of snow melted down to .21 inches of moisture
1/4/2014 8:00 AM 0.00 0.0 M M M Heavy blowing snow, Light powder 17 degrees
1/5/2014 8:00 AM 0.11 M M M M 4 inches of new snow, blowing and drifting -4 degrees
1/6/2014 8:00 AM 0.00 0.0 M M M - 6 degrees no new snow.
1/7/2014 8:00 AM 0.00 0.0 M M M clody about 37 degrees, slight wind
1/8/2014 8:00 AM 0.00 0.0 M M M 22 Degrees no new snow still a lot of ice and snow in the shaded areas.
1/10/2014 8:00 AM 0.00 0.0 M M M 30 egrees windy no new snow.
1/11/2014 8:00 AM 0.00 0.0 M M M no wind to speak of but the ground is still frozen with ice on the north side roads.
1/12/2014 8:00 AM 0.00 0.0 M M M 38 egrees, heavy wind gusting, Much melted snow to ice over night most north side roads covered in slick ice!!
1/13/2014 8:00 AM 0.00 0.0 M M M 52 Degrees, heavy bloustry winds a lot of ice is finaly starting to melt.
1/14/2014 8:00 AM 0.00 0.0 M M M 34 egrees, very slight wind. about just a dusting of snow last night from 5 PM untill 6 PM.
1/16/2014 8:00 AM 0.00 0.0 M M M 44 degrees no wind but plenty of mud on the melting roads
1/17/2014 8:00 AM 0.00 0.0 M M M Windy again the ground is starting to thaw in the suuny spoots
1/22/2014 8:00 AM 0.00 0.0 M M M 38 Degrees cloudy ,slight wind, no snow yet!!
1/23/2014 8:00 AM 0.00 0.0 M M M Clear sunny slight wind 17 degrees.
1/24/2014 8:00 AM 0.00 0.0 M M M Blustry winds about 40 degrees.
1/26/2014 8:00 AM 0.00 0.0 M M M 27 Degrees snow started at about 9 AM
1/27/2014 8:00 AM 0.00 0.0 M M M 4 degrees slight dusting of snow yesterday.
1/28/2014 8:00 AM 0.00 0.0 M M M 15 Degrees at 8 am sunny weather
1/29/2014 8:00 AM 0.00 0.0 M M M 37 degrees cloudy
1/30/2014 8:00 AM 0.00 0.0 M M M 6 inches on new snow started abiur 12 pm yesteray no moisture content yet [rpbally about .6 inch dry snow
1/31/2014 8:00 AM 0.00 0.0 M M M 0 degfrees this am we only got about 1 inch of new snow. Slight gusty wind at the present time'
2/1/2014 8:00 AM 0.00 0.0 M M M 22 degrees sunny no new snow
2/2/2014 8:00 AM 0.00 0.0 M M M 13 deggrees this AM some what cloudy.
2/3/2014 8:00 AM 0.02 1.0 M M M 1 ihch of new snow that started about 5 AM. currently 8 degrees blowing drifting snow.
2/4/2014 8:00 AM 0.30 1.0 M 3.0 M -4 degrees slight wind about 5MPH
2/5/2014 8:00 AM 0.21 M 0.21 M M We had only 2 inches of snow in the last 48 hours and it amounted to .21 inches of moisture.
2/6/2014 8:00 AM 0.00 0.0 M M M -31 degrees clear and cold!!!!!
2/7/2014 8:00 AM 0.00 0.0 M M M - 11 degrees and slight wind
2/8/2014 8:00 AM 0.00 0.0 M M M 5 degrees and lite snow.
2/9/2014 8:00 AM 0.38 1.0 M 4.0 M -1 degrees slight north wind and only 1 inch of new snow.
2/10/2014 8:00 AM 0.11 M M M M No new snow today in the last 24 hours.11 degrees
2/11/2014 8:00 AM 0.00 0.0 M M M 36 degrees no new snow
2/12/2014 8:00 AM 0.00 0.0 M M M Windy at 23 degrees, just a snow squal yesterday for about 1/2 hour
2/13/2014 8:00 AM 0.00 0.0 M M M 38 degrees ice and melting snow all around. Road condictions very icey,
2/14/2014 8:00 AM 0.00 0.0 M M M 32 degrees , roads covered in broken ice windy
2/15/2014 8:00 AM 0.00 0.0 M M M 40 degrees wind at about 10 mph
2/18/2014 8:00 AM 0.00 0.0 M M M 36 degrees wind about 15 and gusting
2/19/2014 8:00 AM 0.00 0.0 M M M 37 degrees gusting wind about 20mph, overcast
2/20/2014 8:00 AM 0.00 0.0 M M M 29 degrees and clear, the winf gusting ti 16 mph
2/21/2014 8:00 AM 0.00 0.0 M M M 26 degrees, slight 12 mph breze, just a skift of snow
2/22/2014 8:00 AM 0.05 0.5 0.05 M M We have 1/2 inch of new powered snow since last night and it melted down to .05 inches of moisture (edit: new snowfall changed from 5.0" to 0.5" due to comments above. P.G.)
2/23/2014 8:00 AM 0.25 M M 1.0 M Total snow accumulation abot 1 inch (edit: new snowfall changed from 25.0" to NA due to comments above. P.G.)
2/24/2014 8:00 AM 0.60 9.0 0.60 9.0 0.60 5 Degrees blowing snow a little over 9 inches of new snow, wind gusting to ablut 10 mpr some drifts about 1 1/2 foot.
2/26/2014 8:00 AM 0.00 0.0 M M M No new snow we are at -8 degrees and wind about 15 mph gusting
2/28/2014 8:00 AM 0.75 5.0 M 13.0 M We ave 5 inches + with drufting snow over 18 inches.Its 10 degrees
3/1/2014 8:00 AM 0.46 M M M M 4 inces of new snow today
3/3/2014 8:00 AM 0.00 0.0 M M M No new snow 17 degrees wind about 10mph, cloudy
3/4/2014 8:00 AM 0.00 0.0 M M M 31 degrees wind 10 mph
3/5/2014 8:00 AM 0.00 0.0 M M M 37 degrees icey roads and slight wind about 12mph.
3/6/2014 8:00 AM 0.00 0.0 M M M 45 degrees and slight wind@ 12 mpr much snow and mud
3/10/2014 8:00 AM 0.30 M M M M Heavy rain fog mudy roads # 4 road out of roundup is flouded from town to te Padrazy ranch bridgge
3/11/2014 8:00 AM 0.80 M M M M we received .8 inches of moisture since 8 AM yesterday
3/18/2014 8:00 AM 0.05 M M M M
3/22/2014 8:00 AM 0.02 0.5 M M M 1/2 inch on new powered snow in the last 24 hours
3/24/2014 8:00 AM 0.05 M M M M 1 inch of powered snow in the last 24 hours
3/27/2014 8:00 AM 0.00 0.0 M M M 28 degrees snow fluries
3/28/2014 8:00 AM 0.33 3.0 M M M About 3 inches of new snow in the last 24 hours
3/31/2014 8:00 AM 0.11 M M M M 1/2 inch on new snow in rhe last 24 hours
4/7/2014 8:00 AM 0.03 M M M M light rain and sleet yesterday not any accumulation though.
4/19/2014 8:00 AM 0.19 M M M M
4/23/2014 8:00 AM 0.06 M M M M
4/27/2014 8:00 AM 0.61 M M M M Hard rain last night at times. Total accumulation was .61 inches.
5/3/2014 8:00 AM 0.02 M M M M Misty rain started about 5 AM.
5/5/2014 8:00 AM 0.31 M M M M
5/6/2014 8:00 AM 0.21 M M M M Intermitin rain showers
5/7/2014 8:00 AM 0.55 M M M M Just a dusting of snow arounf 6 AM
5/10/2014 8:00 AM 0.21 M M M M a bit blustry
5/17/2014 8:00 AM 0.16 M M M M
5/18/2014 8:00 AM 0.81 M M M M We have had pea size ail twice today a;so.
5/19/2014 8:00 AM 0.25 M M M M
5/25/2014 8:00 AM 0.31 M M M M
5/27/2014 8:00 AM 0.02 M M M M
6/1/2014 8:00 AM 0.07 M M M M
6/2/2014 8:00 AM 0.03 M M M M
6/4/2014 8:00 AM 0.43 M M M M
6/6/2014 8:00 AM 0.10 M M M M
6/8/2014 8:00 AM 0.22 M M M M
6/11/2014 8:00 AM 0.82 M M M M
6/12/2014 8:00 AM 0.15 M M M M
6/14/2014 8:00 AM 0.03 M M M M
6/16/2014 8:00 AM 0.03 M M M M
6/17/2014 8:00 AM 0.15 M M M M as of 8 AM this morning . now raining hard off and on.
6/18/2014 8:00 AM 1.40 M M M M
6/19/2014 8:00 AM 0.03 M M M M
6/26/2014 8:00 AM 0.20 M M M M
6/27/2014 8:00 AM 0.29 M M M M
7/7/2014 8:00 AM M M M M M we receiver .25 inches of rain in the last 4 days Changed to NA due to multi-day accumulation
7/16/2014 8:00 AM 0.15 M M M M
7/22/2014 8:00 AM 0.21 M M M M
7/23/2014 8:00 AM 0.02 M M M M Light rain yesterday and a lot of smoke in the air from nearby small range fires, Today will be HOT.
7/26/2014 8:00 AM 0.00 0.0 M M M Hot and dry 70 degrees, no wing today
7/31/2014 8:00 AM 0.00 0.0 M M M All is quite We hope the fire stays out, and pray for RAIN!!
8/9/2014 8:00 AM 0.03 M M M M Short shower started about 6:30 Am stopped about 9 AM
8/15/2014 8:00 AM 0.20 M M M M It started raining about 1 pm rained for about 2 hours
8/16/2014 8:00 AM 0.09 M M M M Currently cloudy with thunder possible showers
8/21/2014 8:00 AM 0.15 M M M M I got .15 inches of rain last night an its still raining lightly.
8/22/2014 8:00 AM 0.40 M M M M We got .4 inches of rain in the last 24 hours. It is raining hard now.
8/23/2014 8:00 AM 3.00 M M M M We had had .93 inches of rain since 9PM last night, it's raining hard and steady at the present, accumulate 2.0 inches in the last 6.5 hours.
8/24/2014 8:00 AM 1.70 M M M M We have received 1.7 inches of rain since yesterday at 8 AM
8/29/2014 8:00 AM 0.08 M M M M Slight shower last night.
9/7/2014 8:00 AM 0.00 0.0 M M M
9/9/2014 8:00 AM 0.00 0.0 M M M
9/10/2014 8:00 AM 0.12 M M M M Rain started around 5 AM and is still raining now.
9/11/2014 8:00 AM 0.32 0.0 M 0.0 M Light snow since 5 AM, no accumulation.
9/12/2014 8:00 AM 0.02 M M M M Frost and 26 degrees
9/27/2014 8:00 AM 0.03 M M M M
9/28/2014 8:00 AM 0.11 M M M M Misty rain conditions
9/29/2014 8:00 AM 0.21 M M M M Misty intermittent rain, Fog
9/30/2014 8:00 AM 0.06 M M M M a bit cloudy slight rain in the last 23 hours



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
7/4/2014 7/07/2014 8:00 AM 4 0.25 M M



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground